Sound Waves Multiple Choice Questions 7 PDF Download

Learn sound waves MCQs, grade 7 online science test 7, all around sounds multiple choice questions and answers. All around sounds revision test has science worksheets, helping answer key with choices as natural sounds, artificial sounds, man-made sounds and sounds made electronically of multiple choice questions (MCQ) with all around sounds quiz as singing and talking are the for competitive exam prep, viva interview questions. Free science study guide to practice all around sounds quiz to attempt multiple choice questions based test.

MCQs on Sound Waves Quiz PDF Download Worksheets 7

MCQ. Singing and talking are the

  1. artificial sounds
  2. natural sounds
  3. man-made sounds
  4. sounds made electronically

C

MCQ. In large empty rooms, even a click keeps on

  1. increasing
  2. decreasing
  3. repeating
  4. coming

C

MCQ. Sounds of thunder and horn of lorries are known as

  1. loud sounds
  2. soft sounds
  3. high pitched sounds
  4. low pitched sounds

A

MCQ. Sound is created by our vocal cord due to

  1. air in lungs
  2. cilia in the throat
  3. vibration in throat
  4. vibration in lungs

C

MCQ. The normal value of decibel that our ears can detect is

  1. -20
  2. 0
  3. 20
  4. 40

B